![]() This rugged clip cradles the truss or rafter on two sides. Simpson Strong-Tie H1 Hurricane Tie 18 Gauge Simpson Strong Tie H1 clip is one of the most commonly used. Given the diverse design styles of roofs, with some having rafters and others using trusses, there are different types of hurricane clips you can use to adequately prepare your home or shed for damaging winds. ![]() The only way that is possible is if there is a strong connection from the roof to the foundation. That means that when the roof is faced with potentially damaging winds, the foundation should be helping out. While neither the International Building Code (IBC 1604.4) nor the International Residential Code (IRC R301.1) expressly requires hurricane ties, both state that a “complete load-path” be created between the foundation and whatever force is put upon the structure. Are Hurricane Ties Required?Īfter category 5 Hurricane Andrew devastated Florida in 1992, causing more than $25 billion worth of damage, Florida began requiring that all new construction use hurricane ties. Likewise, a tie that doesn’t engage the joists in the wall could result in the wall’s top plate pulling away from the joists. The old saying, “a chain is only as strong as its weakest link,” applies to hurricane straps.įor the load transfer to be successful, a hurricane tie must provide a secure connection from the top of the roof to the wall joists.Ī tie that does not engage the top chord of a truss, for example, could allow wind to pull apart the uppermost section of the roof. ![]() This means that if a strong upwind impacts the roof, the tie will transfer the force from the framing of the uppermost parts of the roof through the walls to the foundation, creating a much stronger structure that will resist upwind forces that could lift the roof off.Ī hurricane tie consists of a piece of heavy gauge galvanized or stainless steel that connects to the joists and top plates, to the rafters, or, in the case of a truss-style roof, to the top chords. The tie works by creating a structural load connection that transfers forces made to the top of the building all the way to its foundation. You’ll also find them in the midwest in homes that face the risk of tornadoes. Hurricane ties are standard in states that experience annual hurricane threats, such as Florida, Louisiana, and coastal communities in the southeastern U.S. This prevents high winds, such as those experienced during a hurricane, from lifting off the roof off the structure.
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